← Fractions and decimals: multiply and divide lesson New set →

Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 281 · 40 sums
TalentJR

The method (Flip and multiply): a/b × c/d = (a × c)/(b × d), then simplify. A whole number n is n/1. a/b ÷ c/d = a/b × d/c. Decimal × decimal: multiply as whole numbers; the answer has as many decimal places as both numbers together — 1.2 × 0.3 = 0.36. Decimal ÷ decimal: multiply both by 10 (or 100) first — 2.4 ÷ 0.6 = 24 ÷ 6 = 4.

NameDateTime takenScore ___ / 40
  1. 1.One bag of potatoes weighs 8.9 kg. How many kg do 10 of them make in all? =
  2. 2.9.7 × 0.9 =
  3. 3.48.96 ÷ 8 =
  4. 4.4.7 × 0.7 =
  5. 5.5.4 ÷ 0.9 =
  6. 6.36.8 ÷ 5 =
  7. 7.5/7 ÷ 4/5 =
  8. 8.2/9 ÷ 2/7 =
  9. 9.3/5 × 5 =
  10. 10.3/8 ÷ 3/7 =
  11. 11.0.6 × 0.4 =
  12. 12.2/7 ÷ 7/8 =
  13. 13.67.36 ÷ 8 =
  14. 14.4/5 × 4/5 =
  15. 15.6/7 ÷ 8/9 =
  16. 16.3.3 ÷ 0.3 =
  17. 17.75.36 ÷ 8 =
  18. 18.1.2 ÷ 0.4 =
  19. 19.3/8 × 2/9 =
  20. 20.1/6 ÷ 1/3 =
  21. 21.16.08 ÷ 8 =
  22. 22.27.04 ÷ 4 =
  23. 23.1/6 × 2/5 =
  24. 24.2.8 ÷ 0.7 =
  25. 25.3.2 ÷ 0.8 =
  26. 26.3/7 × 1/2 =
  27. 27.8.8 × 0.5 =
  28. 28.5.4 ÷ 0.6 =
  29. 29.1.4 ÷ 0.2 =
  30. 30.1/7 × 7/8 =
  31. 31.One bag of potatoes weighs 3.7 kg. How many kg do 12 of them make in all? =
  32. 32.2/9 × 1/5 =
  33. 33.11.56 ÷ 4 =
  34. 34.12.12 ÷ 2 =
  35. 35.2/9 × 4 =
  36. 36.5/9 × 3/8 =
  37. 37.1/8 ÷ 1/9 =
  38. 38.2 ÷ 0.2 =
  39. 39.3.2 × 0.7 =
  40. 40.1/7 × 10 =

Answer key

  1. 89
  2. 8.73
  3. 6.12
  4. 3.29
  5. 6
  6. 7.36
  7. 25/28
  8. 7/9
  9. 3
  10. 7/8
  11. 0.24
  12. 16/49
  13. 8.42
  14. 16/25
  15. 27/28
  16. 11
  17. 9.42
  18. 3
  19. 1/12
  20. 1/2
  21. 2.01
  22. 6.76
  23. 1/15
  24. 4
  25. 4
  26. 3/14
  27. 4.4
  28. 9
  29. 7
  30. 1/8
  31. 44.4
  32. 2/45
  33. 2.89
  34. 6.06
  35. 8/9
  36. 5/24
  37. 9/8
  38. 10
  39. 2.24
  40. 10/7

Free maths worksheets lessons, practice and worksheets at talentjr.in/maths-worksheets